112 BOTANY. (399). Leaves oblong to subcordate, obtuse, crenately serrate, covered vrith a white tomentum beneath, and very veiny. Fallugia* paeadoxa, Endl—Shrubs 2-5° high, with young branches white; leaves ^1^' long; leafless branches terminated by the whitish flower, which is an inch or more in diameter, or later by the dense head of cajpels with thin, woolly styles. Calyx-lobes acute and usually reflexed after the petals fall.—Santa Fd 58), and Arizona, Loew. Geum maceophyllum, Willd.—Colorado (380); Utah; Loew, in Ari¬ zona. Geum teifloeum, Pursh.—Colorado (394). Geum eivale, L.—Colorado (381). Geum Rossii, Seringe.—Colorado, alpine, reaching as high as 13,500 feet (385, 387) ; Utah. Feagaeia Vieginiana, Duchesne.—Colorado (402). Var. glauca, Watson. PoTENTiLLA GLANDULOSA, Liudl, var. Ncvadcnsis, S Watson.—(379.) CoUected in Colorado in 1873. It is a true P. glandulosa, Lindl, and hence the same as P. fissa, Nutt., differing from the above only in having more flowers in its less compact cyme. The Survey has it also from Utah. POTIJNTILLA EIVALIS, Nutt.—South Park (373). PoTENTiLLA Pennsylvanica, L.—South Park and Twin Lakes, Colo¬ rado (374, 375); Utah. PoTENTiLLA HiPPiANA, Lchm.—White tomentose throughout, 1° high; leaflets 7-11, decreasing regularly in size from the terminal one down, J-1' long, deeply and sharply serrate; 1-2 smaller leaves on the stem; bract¬ lets a little shorter and petals a little longer than the sepals. Flowers yellow; styles terminal, filiform; carpels glabrous.—Colorado (367, 209) and Arizona (220). * Fallugia, Endl.—Tube of the persistent calyx obconic-hemispherical. At the apex 5-bracteo- lato; lobes 5, ovate; apex 3-dentate, or S-cusp'date, imbricated. Petals 5, large, obovate-rotund. Stamens raany, inserted in a dense 3-fold series ; filaments filiform, united info a ring at the base; anthers small. Torus sulcate, villous, many carpels on the small conical receptacle; style terminal, villous; stigmas small, a single ascending ovule in the base of the cell, the many villose achenia terminated by very long, plumose styles. Seed erect; testa membranaceous ; cotyledons linear-oblong; radiclo inferior.—An erect, much branched shrub, with virgate branchlets. Leaves alternate, petioled, irregularly 3-5-oleft or pinnatifid. Stipules adnate to the petiole. Flowers solitary on the apex ofthe branches, or sub-panicu¬ late on elongated, leafless branches, bractless, rather large.—Bentham & Hooker.